65053b7737
Prior to this patch downloading and computing the checksum of the image were done in different stages, after the download the file would need to be re-read and the checksum was computed. This patch is changing it by creating a ImageDownload class which computes the checksum at the same time the image is being downloaded, this saves time and also make the code more portable. Related-Bug: #1505685 Change-Id: I71f9f2bd9a62a6a6cc474d0ae519591cea6381d6
537 lines
23 KiB
Python
537 lines
23 KiB
Python
# Copyright 2013 Rackspace, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import os
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import mock
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from oslo_concurrency import processutils
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from oslotest import base as test_base
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import six
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from ironic_python_agent import errors
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from ironic_python_agent.extensions import standby
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if six.PY2:
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OPEN_FUNCTION_NAME = '__builtin__.open'
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else:
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OPEN_FUNCTION_NAME = 'builtins.open'
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def _build_fake_image_info():
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return {
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'id': 'fake_id',
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'urls': [
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'http://example.org',
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],
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'checksum': 'abc123'
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}
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class TestStandbyExtension(test_base.BaseTestCase):
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def setUp(self):
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super(TestStandbyExtension, self).setUp()
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self.agent_extension = standby.StandbyExtension()
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def test_validate_image_info_success(self):
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standby._validate_image_info(None, _build_fake_image_info())
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def test_validate_image_info_missing_field(self):
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for field in ['id', 'urls', 'checksum']:
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invalid_info = _build_fake_image_info()
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del invalid_info[field]
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self.assertRaises(errors.InvalidCommandParamsError,
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standby._validate_image_info,
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invalid_info)
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def test_validate_image_info_invalid_urls(self):
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invalid_info = _build_fake_image_info()
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invalid_info['urls'] = 'this_is_not_a_list'
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self.assertRaises(errors.InvalidCommandParamsError,
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standby._validate_image_info,
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invalid_info)
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def test_validate_image_info_empty_urls(self):
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invalid_info = _build_fake_image_info()
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invalid_info['urls'] = []
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self.assertRaises(errors.InvalidCommandParamsError,
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standby._validate_image_info,
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invalid_info)
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def test_validate_image_info_invalid_checksum(self):
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invalid_info = _build_fake_image_info()
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invalid_info['checksum'] = {'not': 'a string'}
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self.assertRaises(errors.InvalidCommandParamsError,
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standby._validate_image_info,
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invalid_info)
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def test_validate_image_info_empty_checksum(self):
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invalid_info = _build_fake_image_info()
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invalid_info['checksum'] = ''
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self.assertRaises(errors.InvalidCommandParamsError,
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standby._validate_image_info,
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invalid_info)
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def test_cache_image_invalid_image_list(self):
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self.assertRaises(errors.InvalidCommandParamsError,
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self.agent_extension.cache_image,
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image_info={'foo': 'bar'})
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def test_image_location(self):
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image_info = _build_fake_image_info()
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location = standby._image_location(image_info)
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self.assertEqual(location, '/tmp/fake_id')
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@mock.patch(OPEN_FUNCTION_NAME, autospec=True)
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@mock.patch('ironic_python_agent.utils.execute', autospec=True)
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def test_write_image(self, execute_mock, open_mock):
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image_info = _build_fake_image_info()
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device = '/dev/sda'
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location = standby._image_location(image_info)
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script = standby._path_to_script('shell/write_image.sh')
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command = ['/bin/bash', script, location, device]
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execute_mock.return_value = ('', '')
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standby._write_image(image_info, device)
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execute_mock.assert_called_once_with(*command, check_exit_code=[0])
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execute_mock.reset_mock()
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execute_mock.return_value = ('', '')
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execute_mock.side_effect = processutils.ProcessExecutionError
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self.assertRaises(errors.ImageWriteError,
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standby._write_image,
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image_info,
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device)
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execute_mock.assert_called_once_with(*command, check_exit_code=[0])
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def test_configdrive_is_url(self):
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self.assertTrue(standby._configdrive_is_url('http://some/url'))
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self.assertTrue(standby._configdrive_is_url('https://some/url'))
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self.assertFalse(standby._configdrive_is_url('ftp://some/url'))
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self.assertFalse(standby._configdrive_is_url('binary-blob'))
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@mock.patch.object(standby, '_write_configdrive_to_file')
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@mock.patch('requests.get', autospec=True)
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def test_download_configdrive_to_file(self, get_mock, write_mock):
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url = 'http://swift/configdrive'
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get_mock.return_value.content = 'data'
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standby._download_configdrive_to_file(url, 'filename')
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get_mock.assert_called_once_with(url)
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write_mock.assert_called_once_with('data', 'filename')
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@mock.patch('gzip.GzipFile', autospec=True)
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@mock.patch(OPEN_FUNCTION_NAME, autospec=True)
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@mock.patch('base64.b64decode', autospec=True)
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def test_write_configdrive_to_file(self, b64_mock, open_mock, gzip_mock):
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open_mock.return_value.__enter__ = lambda s: s
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open_mock.return_value.__exit__ = mock.Mock()
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write_mock = open_mock.return_value.write
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gzip_read_mock = gzip_mock.return_value.read
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gzip_read_mock.return_value = 'ungzipped'
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b64_mock.return_value = 'configdrive_data'
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filename = standby._configdrive_location()
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standby._write_configdrive_to_file('b64data', filename)
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open_mock.assert_called_once_with(filename, 'wb')
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gzip_read_mock.assert_called_once_with()
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write_mock.assert_called_once_with('ungzipped')
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@mock.patch('os.stat', autospec=True)
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@mock.patch(('ironic_python_agent.extensions.standby.'
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'_write_configdrive_to_file'),
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autospec=True)
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@mock.patch(OPEN_FUNCTION_NAME, autospec=True)
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@mock.patch('ironic_python_agent.utils.execute', autospec=True)
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def test_write_configdrive_to_partition(self, execute_mock, open_mock,
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configdrive_mock, stat_mock):
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device = '/dev/sda'
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configdrive = standby._configdrive_location()
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script = standby._path_to_script('shell/copy_configdrive_to_disk.sh')
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command = ['/bin/bash', script, configdrive, device]
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execute_mock.return_value = ('', '')
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stat_mock.return_value.st_size = 5
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standby._write_configdrive_to_partition(configdrive, device)
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execute_mock.assert_called_once_with(*command, check_exit_code=[0])
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execute_mock.reset_mock()
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execute_mock.return_value = ('', '')
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execute_mock.side_effect = processutils.ProcessExecutionError
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self.assertRaises(errors.ConfigDriveWriteError,
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standby._write_configdrive_to_partition,
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configdrive,
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device)
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execute_mock.assert_called_once_with(*command, check_exit_code=[0])
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@mock.patch('os.stat', autospec=True)
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@mock.patch(('ironic_python_agent.extensions.standby.'
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'_write_configdrive_to_file'),
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autospec=True)
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@mock.patch(OPEN_FUNCTION_NAME, autospec=True)
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@mock.patch('ironic_python_agent.utils.execute', autospec=True)
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def test_write_configdrive_too_large(self, execute_mock, open_mock,
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configdrive_mock, stat_mock):
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device = '/dev/sda'
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configdrive = standby._configdrive_location()
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stat_mock.return_value.st_size = 65 * 1024 * 1024
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self.assertRaises(errors.ConfigDriveTooLargeError,
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standby._write_configdrive_to_partition,
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configdrive,
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device)
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@mock.patch('hashlib.md5')
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@mock.patch(OPEN_FUNCTION_NAME)
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@mock.patch('requests.get')
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def test_download_image(self, requests_mock, open_mock, md5_mock):
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image_info = _build_fake_image_info()
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response = requests_mock.return_value
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response.status_code = 200
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response.iter_content.return_value = ['some', 'content']
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file_mock = mock.Mock()
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open_mock.return_value.__enter__.return_value = file_mock
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file_mock.read.return_value = None
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hexdigest_mock = md5_mock.return_value.hexdigest
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hexdigest_mock.return_value = image_info['checksum']
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standby._download_image(image_info)
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requests_mock.assert_called_once_with(image_info['urls'][0],
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stream=True, proxies={})
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write = file_mock.write
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write.assert_any_call('some')
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write.assert_any_call('content')
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self.assertEqual(write.call_count, 2)
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@mock.patch('hashlib.md5')
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@mock.patch(OPEN_FUNCTION_NAME)
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@mock.patch('requests.get')
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@mock.patch.dict(os.environ, {})
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def test_download_image_proxy(
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self, requests_mock, open_mock, md5_mock):
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image_info = _build_fake_image_info()
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proxies = {'http': 'http://a.b.com',
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'https': 'https://secure.a.b.com'}
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no_proxy = '.example.org,.b.com'
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image_info['proxies'] = proxies
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image_info['no_proxy'] = no_proxy
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response = requests_mock.return_value
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response.status_code = 200
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response.iter_content.return_value = ['some', 'content']
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file_mock = mock.Mock()
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open_mock.return_value.__enter__.return_value = file_mock
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file_mock.read.return_value = None
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hexdigest_mock = md5_mock.return_value.hexdigest
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hexdigest_mock.return_value = image_info['checksum']
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standby._download_image(image_info)
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self.assertEqual(no_proxy, os.environ['no_proxy'])
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requests_mock.assert_called_once_with(image_info['urls'][0],
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stream=True, proxies=proxies)
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write = file_mock.write
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write.assert_any_call('some')
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write.assert_any_call('content')
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self.assertEqual(write.call_count, 2)
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@mock.patch('requests.get', autospec=True)
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def test_download_image_bad_status(self, requests_mock):
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image_info = _build_fake_image_info()
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response = requests_mock.return_value
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response.status_code = 404
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self.assertRaises(errors.ImageDownloadError,
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standby._download_image,
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image_info)
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@mock.patch('hashlib.md5', autospec=True)
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@mock.patch(OPEN_FUNCTION_NAME, autospec=True)
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@mock.patch('requests.get', autospec=True)
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def test_download_image_verify_fails(self, requests_mock, open_mock,
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md5_mock):
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image_info = _build_fake_image_info()
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response = requests_mock.return_value
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response.status_code = 200
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hexdigest_mock = md5_mock.return_value.hexdigest
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hexdigest_mock.return_value = 'invalid-checksum'
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self.assertRaises(errors.ImageChecksumError,
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standby._download_image,
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image_info)
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def test_verify_image_success(self):
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image_info = _build_fake_image_info()
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image_location = '/foo/bar'
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checksum = image_info['checksum']
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standby._verify_image(image_info, image_location, checksum)
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def test_verify_image_failure(self):
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image_info = _build_fake_image_info()
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image_location = '/foo/bar'
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checksum = 'invalid-checksum'
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self.assertRaises(errors.ImageChecksumError,
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standby._verify_image,
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image_info, image_location, checksum)
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@mock.patch('ironic_python_agent.hardware.dispatch_to_managers',
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autospec=True)
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@mock.patch('ironic_python_agent.extensions.standby._write_image',
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autospec=True)
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@mock.patch('ironic_python_agent.extensions.standby._download_image',
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autospec=True)
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def test_cache_image(self, download_mock, write_mock,
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dispatch_mock):
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image_info = _build_fake_image_info()
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download_mock.return_value = None
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write_mock.return_value = None
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dispatch_mock.return_value = 'manager'
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async_result = self.agent_extension.cache_image(image_info=image_info)
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async_result.join()
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download_mock.assert_called_once_with(image_info)
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write_mock.assert_called_once_with(image_info, 'manager')
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dispatch_mock.assert_called_once_with('get_os_install_device')
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self.assertEqual(self.agent_extension.cached_image_id,
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image_info['id'])
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self.assertEqual('SUCCEEDED', async_result.command_status)
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self.assertTrue('result' in async_result.command_result.keys())
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cmd_result = ('cache_image: image ({0}) cached to device {1}'
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).format(image_info['id'], 'manager')
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self.assertEqual(cmd_result, async_result.command_result['result'])
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@mock.patch('ironic_python_agent.hardware.dispatch_to_managers',
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autospec=True)
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@mock.patch('ironic_python_agent.extensions.standby._write_image',
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autospec=True)
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@mock.patch('ironic_python_agent.extensions.standby._download_image',
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autospec=True)
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def test_cache_image_force(self, download_mock, write_mock,
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dispatch_mock):
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image_info = _build_fake_image_info()
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self.agent_extension.cached_image_id = image_info['id']
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download_mock.return_value = None
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write_mock.return_value = None
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dispatch_mock.return_value = 'manager'
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async_result = self.agent_extension.cache_image(
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image_info=image_info, force=True
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)
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async_result.join()
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download_mock.assert_called_once_with(image_info)
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write_mock.assert_called_once_with(image_info, 'manager')
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dispatch_mock.assert_called_once_with('get_os_install_device')
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self.assertEqual(self.agent_extension.cached_image_id,
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image_info['id'])
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self.assertEqual('SUCCEEDED', async_result.command_status)
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self.assertTrue('result' in async_result.command_result.keys())
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cmd_result = ('cache_image: image ({0}) cached to device {1}'
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).format(image_info['id'], 'manager')
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self.assertEqual(cmd_result, async_result.command_result['result'])
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@mock.patch('ironic_python_agent.hardware.dispatch_to_managers',
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autospec=True)
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@mock.patch('ironic_python_agent.extensions.standby._write_image',
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autospec=True)
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@mock.patch('ironic_python_agent.extensions.standby._download_image',
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autospec=True)
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def test_cache_image_cached(self, download_mock, write_mock,
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dispatch_mock):
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image_info = _build_fake_image_info()
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self.agent_extension.cached_image_id = image_info['id']
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download_mock.return_value = None
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write_mock.return_value = None
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dispatch_mock.return_value = 'manager'
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async_result = self.agent_extension.cache_image(image_info=image_info)
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async_result.join()
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self.assertFalse(download_mock.called)
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self.assertFalse(write_mock.called)
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dispatch_mock.assert_called_once_with('get_os_install_device')
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self.assertEqual(self.agent_extension.cached_image_id,
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image_info['id'])
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self.assertEqual('SUCCEEDED', async_result.command_status)
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self.assertTrue('result' in async_result.command_result.keys())
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cmd_result = ('cache_image: image ({0}) already present on device {1}'
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).format(image_info['id'], 'manager')
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self.assertEqual(cmd_result, async_result.command_result['result'])
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@mock.patch(('ironic_python_agent.extensions.standby.'
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'_write_configdrive_to_partition'),
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autospec=True)
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@mock.patch('ironic_python_agent.hardware.dispatch_to_managers',
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autospec=True)
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@mock.patch('ironic_python_agent.extensions.standby._write_image',
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autospec=True)
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@mock.patch('ironic_python_agent.extensions.standby._download_image',
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autospec=True)
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@mock.patch('ironic_python_agent.extensions.standby._configdrive_location',
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autospec=True)
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def test_prepare_image(self,
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location_mock,
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download_mock,
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write_mock,
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dispatch_mock,
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configdrive_copy_mock):
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image_info = _build_fake_image_info()
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location_mock.return_value = '/tmp/configdrive'
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download_mock.return_value = None
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write_mock.return_value = None
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dispatch_mock.return_value = 'manager'
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configdrive_copy_mock.return_value = None
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async_result = self.agent_extension.prepare_image(
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image_info=image_info,
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configdrive='configdrive_data'
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)
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async_result.join()
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download_mock.assert_called_once_with(image_info)
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write_mock.assert_called_once_with(image_info, 'manager')
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dispatch_mock.assert_called_once_with('get_os_install_device')
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configdrive_copy_mock.assert_called_once_with('configdrive_data',
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'manager')
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self.assertEqual('SUCCEEDED', async_result.command_status)
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self.assertTrue('result' in async_result.command_result.keys())
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cmd_result = ('prepare_image: image ({0}) written to device {1}'
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).format(image_info['id'], 'manager')
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self.assertEqual(cmd_result, async_result.command_result['result'])
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download_mock.reset_mock()
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write_mock.reset_mock()
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configdrive_copy_mock.reset_mock()
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# image is now cached, make sure download/write doesn't happen
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async_result = self.agent_extension.prepare_image(
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image_info=image_info,
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configdrive='configdrive_data'
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)
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async_result.join()
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self.assertEqual(download_mock.call_count, 0)
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self.assertEqual(write_mock.call_count, 0)
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configdrive_copy_mock.assert_called_once_with('configdrive_data',
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'manager')
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self.assertEqual('SUCCEEDED', async_result.command_status)
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self.assertTrue('result' in async_result.command_result.keys())
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cmd_result = ('prepare_image: image ({0}) written to device {1}'
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).format(image_info['id'], 'manager')
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self.assertEqual(cmd_result, async_result.command_result['result'])
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@mock.patch(('ironic_python_agent.extensions.standby.'
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'_write_configdrive_to_partition'),
|
|
autospec=True)
|
|
@mock.patch('ironic_python_agent.hardware.dispatch_to_managers',
|
|
autospec=True)
|
|
@mock.patch('ironic_python_agent.extensions.standby._write_image',
|
|
autospec=True)
|
|
@mock.patch('ironic_python_agent.extensions.standby._download_image',
|
|
autospec=True)
|
|
def test_prepare_image_no_configdrive(self,
|
|
download_mock,
|
|
write_mock,
|
|
dispatch_mock,
|
|
configdrive_copy_mock):
|
|
image_info = _build_fake_image_info()
|
|
download_mock.return_value = None
|
|
write_mock.return_value = None
|
|
dispatch_mock.return_value = 'manager'
|
|
configdrive_copy_mock.return_value = None
|
|
|
|
async_result = self.agent_extension.prepare_image(
|
|
image_info=image_info,
|
|
configdrive=None
|
|
)
|
|
async_result.join()
|
|
|
|
download_mock.assert_called_once_with(image_info)
|
|
write_mock.assert_called_once_with(image_info, 'manager')
|
|
dispatch_mock.assert_called_once_with('get_os_install_device')
|
|
|
|
self.assertEqual(configdrive_copy_mock.call_count, 0)
|
|
self.assertEqual('SUCCEEDED', async_result.command_status)
|
|
self.assertTrue('result' in async_result.command_result.keys())
|
|
cmd_result = ('prepare_image: image ({0}) written to device {1}'
|
|
).format(image_info['id'], 'manager')
|
|
self.assertEqual(cmd_result, async_result.command_result['result'])
|
|
|
|
@mock.patch('ironic_python_agent.utils.execute', autospec=True)
|
|
def test_run_image(self, execute_mock):
|
|
script = standby._path_to_script('shell/shutdown.sh')
|
|
command = ['/bin/bash', script, '-r']
|
|
execute_mock.return_value = ('', '')
|
|
|
|
success_result = self.agent_extension.run_image()
|
|
success_result.join()
|
|
|
|
execute_mock.assert_called_once_with(*command, check_exit_code=[0])
|
|
self.assertEqual('SUCCEEDED', success_result.command_status)
|
|
|
|
execute_mock.reset_mock()
|
|
execute_mock.return_value = ('', '')
|
|
execute_mock.side_effect = processutils.ProcessExecutionError
|
|
|
|
failed_result = self.agent_extension.run_image()
|
|
failed_result.join()
|
|
|
|
execute_mock.assert_called_once_with(*command, check_exit_code=[0])
|
|
self.assertEqual('FAILED', failed_result.command_status)
|
|
|
|
def test_path_to_script(self):
|
|
script = standby._path_to_script('shell/reboot.sh')
|
|
self.assertTrue(script.endswith('extensions/../shell/reboot.sh'))
|
|
|
|
@mock.patch('ironic_python_agent.utils.execute', autospec=True)
|
|
def test_power_off(self, execute_mock):
|
|
script = standby._path_to_script('shell/shutdown.sh')
|
|
command = ['/bin/bash', script, '-h']
|
|
execute_mock.return_value = ('', '')
|
|
|
|
success_result = self.agent_extension.power_off()
|
|
success_result.join()
|
|
|
|
execute_mock.assert_called_once_with(*command, check_exit_code=[0])
|
|
self.assertEqual('SUCCEEDED', success_result.command_status)
|
|
|
|
execute_mock.reset_mock()
|
|
execute_mock.return_value = ('', '')
|
|
execute_mock.side_effect = processutils.ProcessExecutionError
|
|
|
|
failed_result = self.agent_extension.power_off()
|
|
failed_result.join()
|
|
|
|
execute_mock.assert_called_once_with(*command, check_exit_code=[0])
|
|
self.assertEqual('FAILED', failed_result.command_status)
|
|
|
|
|
|
class TestImageDownload(test_base.BaseTestCase):
|
|
|
|
@mock.patch('hashlib.md5', autospec=True)
|
|
@mock.patch('requests.get', autospec=True)
|
|
def test_download_image(self, requests_mock, md5_mock):
|
|
content = ['SpongeBob', 'SquarePants']
|
|
response = requests_mock.return_value
|
|
response.status_code = 200
|
|
response.iter_content.return_value = content
|
|
|
|
image_info = _build_fake_image_info()
|
|
md5_mock.return_value.hexdigest.return_value = image_info['checksum']
|
|
image_download = standby.ImageDownload(image_info)
|
|
|
|
self.assertEqual(content, list(image_download))
|
|
requests_mock.assert_called_once_with(image_info['urls'][0],
|
|
stream=True, proxies={})
|
|
self.assertEqual(image_info['checksum'], image_download.md5sum())
|